Abstract

AbstractNowadays, vehicles with alternative drives are playing an increasingly important role in road transport. Among the various types of alternative-drives, the most widespread ones are hybrid and electric ones, thanks for the rapid development of modern batteries, and hybrid and electrical systems. The above fact establishes the importance of research on various types of electric motors. The Faculty of Engineering of the University of Debrecen has more than a decade of experience in developing prototype race cars with pneumatic and electric drive. For the more effective and conscious development and racing a simulation program has been developed in MATLAB/Simulink environment for the computation of the dynamic functions of a vehicle moving in a linear path. The program is characterized by a modular structure, so the different structural units (vehicle body, front and rear wheels, power train, motor) are modelled and simulated separately. In this study we present models and simulation programs for different electric motor types (series-wound DC and brushless DC motors) in MATLAB/Simulink and apply them in our vehicle dynamics simulation program. From the simulation results the performance of a vehicle – driven by an electric motor – can be predicted in a race situation, consequently the most suitable motor with the optimal characteristics can be selected to it.

Highlights

  • Nowadays, vehicles with alternative drives are playing an increasingly important role in road transport

  • In this study we present models and simulation programs for different electric motor types in MATLAB/Simulink and apply them in our vehicle dynamics simulation program

  • In the recent study we present models and simulation programs for different types of electric motors (serieswound DC (SWDC) and brushless DC (BLDC) motors) and apply them in our vehicle dynamics simulation program

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Summary

INTRODUCTION

Vehicles with alternative drives are playing an increasingly important role in road transport. The Faculty of Engineering of the University of Debrecen has more than a decade of experience in developing prototype race cars with electric and pneumatic drives. Applying the program and supplementing it with an optimization procedure, the optimal values of technical data (e.g. optimal gear ratio in the drive train) can be computed for a given vehicle dynamics aim (racing task). This aim can be e.g. to complete the race in the shortest possible time or with the lowest energy consumption driving above a given minimum speed. The detailed description of the simulation program, together with the input technical characteristics and data that are necessary for running it, can be found in reference [1]

MODELING AND SIMULATION OF THE ELECTRIC MOTOR
Modeling and simulation of series-wound DC motors
Modeling and simulation of brushless DC motors
The used input data for the simulation are: rated power
SIMULATION OF THE PROTOTYPE RACE CAR
CONCLUSION
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